108440561 has 8 divisors (see below), whose sum is σ = 113918400. Its totient is φ = 103026352.

The previous prime is 108440513. The next prime is 108440587. The reversal of 108440561 is 165044801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108440561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108440461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12395 + ... + 19248.

It is an arithmetic number, because the mean of its divisors is an integer number (14239800).

Almost surely, 2^108440561 is an apocalyptic number.

It is an amenable number.

108440561 is a deficient number, since it is larger than the sum of its proper divisors (5477839).

108440561 is a wasteful number, since it uses less digits than its factorization.

108440561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31815.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 108440561 is about 10413.4797738316. The cubic root of 108440561 is about 476.8669805930.

The spelling of 108440561 in words is "one hundred eight million, four hundred forty thousand, five hundred sixty-one".